Abstract
Titanium dioxide (TiO2) porous ceramic pellets with three dimension nano-structure were prepared using nano TiO2 powder. The TiO2 porous ceramic pellets were composed of TiO2 nanoparticles with 14–16 nm in diameter and had porosity of 74.85%. The mean pore size of the TiO2 porous ceramic pellets was 20.73 nm and the main pore size ranged from 3 to 16 nm. The mass loss of the TiO2 ceramic pellets was less than 5% after 20 d immersion in water. The antibacterial properties of the TiO2 pellets were studied. The sterilization rate of Colibacillus (hospital polluted water with bacterium) can reach 99% after 3 h photocatalytic process and these TiO2 pellets are easy to be re-activated and cyclically be used. The shaping mechanism and photocatalysis sterilization mechanism of the TiO2 pellets were discussed.
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D M Blake, P C Maness, Z Huang, et al. Application of the Photocatalytic Chemistry of Titanium Dioxide to Disinfection and the Killing of Cancer Cells[J]. Sep. Purif. Technol., 1999, 28(1): 1–50
S S Block, V P Peng, D W Goswami. Chemically Enhanced Sunlight for Killing Bacteria[J]. J. Solar Energy Engineering, 1997, 119(1): 185–191
Y Kikuchi, K Sunada, T Iyoda, et al. Photocatalytic Bactericidal Effect of TiO2 Thin Films: Dynamic View of the Active Oxygen Species Responsible for the Effect[J]. J. Photoch. Photobio. A, 1997, 106(1–3): 51–56
K Sunada, Y Kikuchi, K Hashimoto, et al. Bactericidal and Detoxification Effects of TiO2 Thin Film Photocatalysts[J]. Environ. Sci. Technol., 1998, 32(5): 726–728
CA Linkous, G J Carter, D B Locuson, et al. Photocatalytic Inhibition of Algae Growth Using TiO2, WO3 and Cocatalyst Modifications[J]. Environ. Sci. Technol., 2000, 34(22): 4 754–4 758
N Kashige, Y Kakita, Y Nakashima, et al. Mechanism of the Photocatalytic Inactivation of Lactobacillus Casei Phage PL-1 by Titania Thin Film[J]. Curr. Microbiol., 2001, 42: 184–189
N S Allen, M Edge, A Ortega, et al. Interrelationship of Spectroscopic Properties with the Thermal and Photochemical Behaviour of Titanium Dioxide Pigments in Metallocene Polyethylene and Alkyd Based Paint Films Micron versus Nanoparticles[J]. Polym. Degrad. Stabil., 2002, 76(2): 305–319
T Corrales, C Peinado, N S Allen, et al. Chemiluminescence Study of Micron and Nanoparticle Titanium Dioxide: Effect on the Thermal Stability of Metallocene Polyethylene[J]. J. Photoch. Photobio. A, 2003, 156(1–3): 151–160
M Edge, R Janes, J Robinson, et al. Microwave Photodielectric and Photoconductivity Studies on Titanium Dioxide Exposed to Continuous, Polychromatic Irradiation: part I: a Novel Analytical Tool to Assess the Photoactivity of Titanium Dioxide[J]. J. Photoch. Photobio. A, 1998, 113(2): 171–180
R Janes, M Edge, J Robinson, et al. Microwave Photodielectric and Photoconductivity Studies on Titanium Dioxide Exposed to Continuous Polychromatic Irradiation, part II: Correlation of the Microwave Response with Changes in Sample Microstructure during Milling[J]. J. Photoch. Photobio. A, 1999, 127(1–3): 111–115
J Verran, R L Taylor, G C Lees. Bacterial Adhesion to inert Thermoplastic Surfaces[J]. J. Mater. Sci.: Mat. Med., 1996, 7(10): 597–601
I R Beadle, J Verran. The Survival and Growth of an Environmental Klebsiella Isolate in Detergent Solutions[J]. J. Appl. Microbiol., 1999, 87(5): 764–769
R Janes, M Edge, J Rigby, et al. The Effect of Sample Treatment and Composition on the Photoluminescence of Anatase Pigments[J]. Dyes and Pigments, 2001, 48(1): 29–34
N S Allen, M Edge, G Sandoval, et al. Photocatalytic Coatings for Environmental Applications[J]. Photoch. and Photobio., 2005, 81: 279–290
J Verran, G Sandoval, N S Allen, et al. Variables Affecting the Antibacterial Properties of Nano and Pigmentary Titania Particles in Suspension[J]. Dyes and Pigments, 2007, 73(3): 298–304
N M Mahmoodi, M Arami, N Y Limaee, et al. Decolorization and Mineralization of Textile Dyes at Solution Bulk by Heterogeneous Nanoparticles of Titanium Dioxide[J]. Colloid. Surface. A, 2006, 290(1–3): 125–131
T Minabe, D A Tryk, P Sawunyama, et al. TiO2-mediated Photodegradation of Liquid and Solid Organic Compounds[ J]. J. Photoch. Photobio. A, 2000, 137(1): 53–62
L D Zhang. Preparation and Application on Ultra-Micropowder[M]. Beijing: China Sinopec Press, 2004: 14–15
R W Siegel. Nanostructured Materials-Mind over Matter[J]. Nanostructured Mater., 1995, 5(1): 1
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Funded by the Applied Basis Research from Sichuan Province, the Research of Photo Purification to Environment with Nano TiO2 (No. 05YJ029-010)
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Yao, Y., Li, Y., Shao, W. et al. Antibacterial properties of TiO2 ceramic pellets prepared using nano TiO2 powder. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 24, 337–342 (2009). https://doi.org/10.1007/s11595-009-3337-0
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DOI: https://doi.org/10.1007/s11595-009-3337-0